requestFocusInWindow疑问

icesummit

当打开一个窗口的时候，我需要将focus设定在某个TextField上。我用的是requestFocusInWindow。但是通过测试发现，多次打开和关闭窗口，有时候focus能正常的设定在我期待的field上，但是有些时候就不可以。为什么会这样呢？我查看了JDK文档，有如下一段话，难道就是说这个问题？有什么解决办法吗？


Requests that this Component get the input focus, if this Component's top-level ancestor is already the focused Window. This component must be displayable, visible, and focusable for the request to be granted. Every effort will be made to honor the request; however, in some cases it may be impossible to do so. Developers must never assume that this component is the focus owner until this component receives a FOCUS_GAINED event.

sakulagi

InputFocus一直都是个大问题。尤其是Java需要在不同的窗口系统中运行，所以很难保证任何情况下都能得到InputFocus。好像没有什么特别好的解决方法

icesummit

多谢斑竹。我再想想办法，看能不能绕过这个问题。